InChI=1S/C15H15NO11/c17-4-1-2-6-5(3-4)15(25,13(23)16-6)14(24)27-12-9(20)7(18)8(19)10(26-12)11(21)22/h1-3,7-10,12,17-20,25H,(H,16,23)(H,21,22)